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TCAN4550-Q1: Difference between TCAN4550 and TCAN4551

Daniel Flor
Intellectual 430 points
Part Number: TCAN4550-Q1
Other Parts Discussed in Thread: TCAN4550

I will need CAN-FD controller/Transceiver to use with a 5v microcontroller. So, I found this two models that are very similar. I'm in doubt in which of the two to choose. They are functionally equivalent ? Could be considered drop-in replacements ? What would be the advantages and the disadvantages between one and the other ?

  • 0
    TI__Guru 62920 points

    Hello,

    These two devices are very similar and perform the same with respect to CAN functionality.  The key differences are that TCAN4551 does not include watchdog functionality and does not provide a regulated 5-V output that could be used for external loads.  If you wanted either of those features, the TCAN4550 would be the right choice.  Otherwise, TCAN4551 could be used.

    Regards,
    Max